HVAC Tools Quiz: Can You Name Them All?Flexible duct joints, I seal them up, airtight and strong, no leaky cup. What tool?73%Next Correct Incorrect Duct mastic seals flexible ductwork joints to prevent air leakage. Flexible duct joints, I seal them up, airtight and strong, no leaky cup. What tool? Wire cutter Crescent wrench Duct mastic Multimeter 73%
